ESSEX INVESTMENT MANAGEMENT CO LLC
Position in MTSI — MACOM Technology Solutions Holdings, Inc.
CIK 201772
BOSTON, MA
Position in MTSI
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$1,871,040
+$778,678 QoQ
Shares Held
4,919
0.0% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.25%
of 13F equity value
Holder Rank
#282
of 650 holders
Holding Since
Jun 2022
17 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MTSI Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $66,189,661 across 13 Semiconductors names. MTSI ranks #6 (2.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TSEM |
Tower Semiconductor Ltd
|
105,543 | $27,508,727 | |
| 2 | AIP |
Arteris, Inc.
|
277,665 | $13,491,742 | |
| 3 | MRVL |
Marvell Technology, Inc.
|
25,911 | $7,718,627 | |
| 4 | SMTC |
Semtech Corp
|
38,226 | $6,186,878 | |
| 5 | DIOD |
Diodes Inc /Del/
|
46,732 | $5,114,350 | |
| 6 | MTSI |
MACOM Technology Solutions Holdings, Inc.
This page
|
4,919 | $1,871,040 | |
| 7 | ON |
On Semiconductor Corp
|
19,369 | $1,831,145 | |
| 8 | AMBQ |
Ambiq Micro, Inc.
|
13,679 | $1,207,855 |
All Filings in MTSI
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,871,040 | 4,919 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $1,092,362 | 4,919 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $842,526 | 4,919 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $612,366 | 4,919 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $773,766 | 5,400 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $542,052 | 5,400 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $701,514 | 5,400 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $600,804 | 5,400 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $601,938 | 5,400 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $516,456 | 5,400 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $501,930 | 5,400 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $440,532 | 5,400 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $353,862 | 5,400 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $382,536 | 5,400 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $340,092 | 5,400 | Shares | Sole | 2023-02-03 | |
| 2022-09-30 | $279,666 | 5,400 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $248,940 | 5,400 | Shares | Sole | 2022-08-12 | |
| No filing history on record for this holder in this stock. | ||||||